Stuttgart 2012 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 34: Poster 1

Q 34.68: Poster

Dienstag, 13. März 2012, 16:30–19:00, Poster.I+II

Towards a dual species matter-wave interferometer in microgravity — •Tammo Sternke1, Claus Lämmerzahl1, Ernst M. Rasel2, and the QUANTUS TEAM1,2,3,4,5,6,7,8,91ZARM - Universität Bremen — 2Institut für Quantenoptik, LU Hannover — 3Institut für Physik, HU Berlin — 4Institut für Laser-Physik, Universität Hamburg — 5Institut für Quantenphysik, Universität Ulm — 6Institut für angewandte Physik, TU Darmstadt — 7MUARC, University of Birmingham — 8FBH, Berlin — 9DLR Institut für Raumfahrtsysteme, Bremen

Matter wave interferometers with chip-based atom lasers have proven their reliability in microgravity experiments as provided by the Bremen drop tower. The pioneering QUANTUS experiment has realized Bose-Einstein condensates with 10 000 87Rb Atoms and a subsequent unperturbed free evolution time of 1s in microgravity[1].

In this poster we present the upgrade of this experiment, QUANTUS II. It comprises a novel atom chip for interferometry with a quantum degenerate mixture of two species (87Rb - 40K) and enhanced performance in particle number for catapult flights doubling the available microgravity time to 9.4s. The longterm goal is a test of Einstein’s weak equivalence principle with quantum objects.

The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR 50 WM 1135.

[1] T. van Zoest et al., "Bose-Einstein condensation in microgravity", Science, vol 328, no. 5985, p. 1540, 2010

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2012 > Stuttgart